The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2013
Filed:
Oct. 08, 2008
Christopher Paul Robinson, Langdon Hills, GB;
Timothy Nicholas Dammery, Leigh-on-Sea, GB;
Christopher Paul Robinson, Langdon Hills, GB;
Timothy Nicholas Dammery, Leigh-on-Sea, GB;
Keymed (Medical & Industrial Equipment) Ltd., Essex, GB;
Abstract
A black level control apparatus and method, particularly for a high-speed video camera (). The apparatus () comprises an image signal channel () for receiving an image signal having a black level from an image sensing device (); a black level sensing device () for generating a black level signal; a black level signal channel (), independent from the image signal channel, for receiving the black level signal from the black level sensing device; a black level controller () for receiving an input signal based on the black level signal, measuring a difference between the input signal and a reference signal, generating a control signal based on the difference, outputting the control signal to the image signal channel to adjust the black level of the image signal, and feeding the control signal to the black level signal channel, such that the input signal is based on the black level signal and the control signal.